Not sure why everyone has such a hardon for bronze tools really. Yeah, bronze would be important if you are playing a civilization game where you started in the stone age and went all the way to modern era; but in a survival game based on today's technology? Why would anyone want to go through the hassle of making bronze for tools or weapons? If you got scrap iron or iron pieces, you would just do that since it is better than using bronze. If you were surviving or rebuilding civilization, you would want to get iron and steel production back up first; then revisit bronze once you are in the age of building sculptures and medals